The percent of the U.S. population that was foreign-born during the years 19302010 can be modeled by
Question:
The percent of the U.S. population that was foreign-born during the years 1930–2010 can be modeled by the quadratic function
where x = 0 represents 1930, x = 10 represents 1940, and so on.
(a) The coefficient of x2 in the model is positive, so the graph of this quadratic function is a parabola that opens up. Will the y-value of the vertex of this graph be a maximum or a minimum?(b) According to the model, in what year during this period was the percent of foreign born population a minimum? (Round down for the year.) Use the actual x-value of the vertex, to the nearest tenth, to find this percent, also to the nearest tenth.
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a The coefficient of x in the quadratic function is positive 0043 0 so the graph of this quadratic f...View the full answer
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Related Book For 
Intermediate Algebra
ISBN: 9780134895987
13th Edition
Authors: Margaret Lial, John Hornsby, Terry McGinnis
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